GB956771A - Image development projection - Google Patents
Image development projectionInfo
- Publication number
- GB956771A GB956771A GB1552260A GB1552260A GB956771A GB 956771 A GB956771 A GB 956771A GB 1552260 A GB1552260 A GB 1552260A GB 1552260 A GB1552260 A GB 1552260A GB 956771 A GB956771 A GB 956771A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- web
- powder
- image
- xerographic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
- G03G15/108—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer with which the recording material is brought in contact, e.g. immersion or surface immersion development
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Photoreceptors In Electrophotography (AREA)
- Developing For Electrophotography (AREA)
Abstract
956,771. Episcopic projection in xerographic apparatus. RANK-XEROX Ltd. May 3,1960 [May 7, 1959], No. 15522/60. Headings G2H and G2J. In a xerographic process a xerographic plate is coated with developer powder either before or during exposure and the latent image formed is made visible by passing an acceptor member into contact with the plate and by establishing a suitable potential field between them thereby transferring a powder image to the acceptor member. In the apparatus shown, a rotating transparent drum 60 comprising a photo conductive layer 62 which is specular reflecting, is coated with a developing powder e.g. charcoal, by a brush 65 and is charged by a corona charging unit 20 before being exposed to a light pattern by cathode ray tube 67. The drum is then pressed against a moving web 41 which has a specular reflecting surface, and a potential difference is applied between the drum and this web (through conducting roller 40) so that a powder image of the pattern is transferred to the web. The images on the web 41 and/or drum 60 are projected on to screens 53, 78 respectively by light from lamps 50, 74 being specularly reflected by the image bearing surfaces. The images may subsequently be fixed. A positive and/or a negative image of the original may therefore be projected as required, by lamp 50 or 74, lenses 51, 54 or 75, 77, on to screen 53 or 78.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81161059A | 1959-05-07 | 1959-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB956771A true GB956771A (en) | 1964-04-29 |
Family
ID=25207040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1552260A Expired GB956771A (en) | 1959-05-07 | 1960-05-03 | Image development projection |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE1497028C3 (en) |
| GB (1) | GB956771A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE546297A (en) * | 1955-03-23 |
-
1960
- 1960-04-26 DE DE19601497028 patent/DE1497028C3/en not_active Expired
- 1960-05-03 GB GB1552260A patent/GB956771A/en not_active Expired
- 1960-05-06 DE DE1960R0027913 patent/DE1246409B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1497028C3 (en) | 1973-11-29 |
| DE1246409B (en) | 1967-08-03 |
| DE1497028B2 (en) | 1973-04-26 |
| DE1497028A1 (en) | 1969-07-03 |
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